SABRENT USB 2.0 to Serial (9 Pin) DB 9 RS 232 Converter Cable, Prolific Chipset, HEXNUTS, [Windows 11/10/8.1/8/7/VISTA/XP, Mac OS X 10.6 and Above] 2.5 Feet (CB-DB9P)

It does what I needed it to do. The 6' length is good for the work I do. Careful it may not be a cable it may be a driver that could be your laptop problem.

Years ago, serial cables were a dime a dozen and every PC and some laptops had a serial port. USB basically made the serial port obsolete for most devices except networking devices like switches and routers.Most switches in the past few years come with a micro USB or USB-C management port in addition to an RJ45 jack for a serial cable. I've found the USB connections to be hit or miss. But a serial cable always works.I have a TP-Link SG3428 switch that I needed to reset the password for so it could be adopted by an Omada controller. Most layer 2/3 switches don't have a reset button you can press, so you need to console in and do it from the bios. Used this adapter along with the RJ45 to serial port cable the switch came with and it worked perfectly.You will need to load the drivers for the cable as it has a chip in it. But the adapter comes with a driver CD. Ironically, that presents another problem as no PCs or laptops come with a CD drive anymore. But my personal PC at home has multiple disc drives so wasn't an issue for me.This cable just works, no issues. Highly recommended.

seems to work as it should. was a great price and seems like a quality cable

Works fine

Funciona Excelente

This item was so good: it didn't even leave rope burns or anything!

I plugged this device into my MacBook Pro expecting to see devices appear under /dev/cu* and /dev/tty* but nothing appeared. It *does* appear in System Information under the USB subsection, but no devices appear under /dev. Fine, I'll download and install a driver, because this is the year 2025 and apparently drivers are still required for goofy devices like this one. There is no download matching the device I have, so I take a guess at which driver to download. There are three versions of the driver packed inside the .zip so I try the newest one, from 2021. I get a message that the kernel extension needs to be updated and could not be installed. Why in the heck is a usb to serial adapter so difficult in 2025? I would recommend against purchasing anything from Sabrent for a Mac. They clearly don't care about Macs.

The screws around the port are NOT removable. You can't just screw them out. This is important when you are plugging up to a device which also had the same protruding screws and the two butt up against one another preventing the connector from actually working. I'm having to deal with his right now.Not a plug and play solution in every case and short of cutting those mounts off you're going to have to adapt your other parts to work with this.